More than 150 years under British rule, the 13 colonies in America struggled to receive independence. However, the British government passed many laws and took actions which the colonists then felt that it was very unfair. Here is the causes of the American Revolution. The Stamp Act is an example of British aggression toward the Colonies. For example, The Stamp Act was a tax put on the American Colonies by the British so whatever the colonists bought had to pay more because the British put a tax on it. The colonists were very unhappy about that aswell. The Quartering Act is another example of British aggression towards the Colonies. For example, The Quartering Act means that all colonies had to provide barracks for the British Soldiers